US2618235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat control mechanism
Assignee: Individual
•
Filing: 1946-06-21
•
Granted: 1952-11-18
•
Expires: 1966-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Ernest A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:11
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/22; B63H23/00; B63H23/28; B63H23/02; B63H23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2406264A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |